Wire shaped electron source
US5172027A · kind A · utility
2Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1991 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Aug 9, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J1/15
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wire shaped electron source includes a heating core wire, an insulator partially provided on the heating core wire, and an electron emission material provided on the heating core between the insulators. The thickness of the electron emission material is less than the height of the insulators. When the wire shape electron source is installed in a flat panel display device, the insulator prevents the electron emission material from vibrating thus preventing any contact with the inner wall of the flat panel display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.